摘要
西溪湿地引水前后水环境的变化过程是进行珊瑚沙引水对西溪湿地生态环境影响研究的重要内容。通过对珊瑚沙引水前后西溪湿地各影响区域的水质监测结果进行对比,表明引水工程对于改善西溪湿地水源的作用非常明显,特别是外围河道与周家村水体中污染物减少尤为显著。不过由于西溪湿地水系纵横交汇、流场错综复杂,各个景点受珊瑚沙引水的影响存在显著差异。其中周家村、烟水渔庄、深潭口、虾龙滩等水体中CODMn、BOD5、氨氮、总磷等削减32%～78%。引水后西溪湿地各景点水体混浊度增加12%～89%,氯化物增加18%～76%。
The Change of water quality in Xixi Wetland affected by coral sand diversion works is the important contents of impact environmental studies. Through the coral sand around the Xixi Wetland diversion effects of each regional water quality monitoring results of comparative analysis shows that water diversion project to improve the role of Xixi Wetland water is clear, particularly in the external channel and Zhoujiacun, to reduce pollutants in water is particularly significant. However, because of vertical and horizontal convergence of Xixi Wetland water, flow field complex, the various attractions of the impact of water diversion by the coral sand there were significant differences. CODMn , BODS, ammonia nitrogen, total phosphorus reduced by 32% to 78% in Zhoujiacnn, Yanshuiyuzhuang, Shentankou and Xialongtan. Water turbidity increased by 12% to 89%. Chloride increased by 18% to 76%.
出处
《科技通报》
北大核心
2012年第7期160-164,共5页
Bulletin of Science and Technology
基金
国家湿地公园示范项目"西溪国家湿地公园研究"
关键词
西溪湿地
引水
水质
评价
xixi wetland
diversion works
water quality
evaluation
